Monster waves the size of a six-story building broke at Mavericks on Thursday, drawing professional big wave surfers from Santa Cruz and around the world.

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Conditions were too chaotic for Titans of Mavericks to hold the annual competition, contest organizers said.

The man who first surfed Mavericks, Jeff Clark told KTVU that many waves were 40-feet off the Pillar Point Harbor, but several more topped 50 feet. Waves can top 60 feet at the break, and pound the underwater reef with such force they can be recorded by seismographs.

One of the 24 invited Titans of Mavericks surfers, Garrett McNamara, took a nasty wipeout on a towering wave and was rushed into surgery for a dislocated shoulder.

The surf contest could still be held this season, depending on conditions. The window for the contest closes on March 31st, 2016.

Up and down the coast, wave watchers flocked to the shore to catch the gigantic breakers.

The National Weather Service issued a high surf warning and coastal flood watch for the Monterey Bay.

The highest waves peaked before afternoon, but large swells will continue through the on-going storms and a high surf advisory remains in effect until Friday morning at 4 a.m.